Heat Recovery by Heat Pipe Heat Exchangers to Improve Energy Efficiency in Farming and Industry

Hlavačka, V.; Macek, L.; Polasek, F.; Štulc, P.; Valcháˇ, J.; Vasiliev, L. L.

doi:10.1016/b978-0-08-034798-1.50016-1

Cited by 2 publications

(2 citation statements)

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“…And thus, according to Kirchhoff, this involves an "absolute black-body" surfaces, therefore ε 1 = ε 2 = 1.00 [-]. The result of the assumptions is then the formulated equation (6).…”

Section: Technical Solution Of Heat Transfermentioning

confidence: 99%

“…Heat exchangers with the outer surface area 1 m 2 have a power of the heat transfer over 100 kW, but the heat losses to the vicinity are lower than 500 W. That is why ξ [-] ranges below the limit ξ < 0.50%. The result is that in cases, when the heat exchanger is placed indoors, the outer surface of the heat exchanger need not be insulated [6]. This conclusion results also from the effort of the heat exchanger manufacturers to produce the most compact product possible, which has the highest transferred heat output Q heat [W], and the smallest inner content, and thus even the smallest outer surface area A [m 2 ] of the exchanger.…”

Section: Heat Loss Of Heat Exchangers Into Vicinitymentioning

confidence: 99%

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Theoretical Calculation of Heat Losses of Heat Exchangers to Vicinity

Kubín

Hirš

2014

AMR

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This contribution is focused on heat exchangers and their heat losses dispersed into vicinity. In the introduction of the contribution this loss heat flow of heat exchangers is analysed into basic physical processes and with applying simplifying assumptions it is described by a computational equation suitable for technical practice. The result of the study is the confirmation of the general fact that the quotient of losses heat into vicinity with regard to the transferred heat flows in the heat exchanger is insignificant.

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“…And thus, according to Kirchhoff, this involves an "absolute black-body" surfaces, therefore ε 1 = ε 2 = 1.00 [-]. The result of the assumptions is then the formulated equation (6).…”

Section: Technical Solution Of Heat Transfermentioning

confidence: 99%

Section: Heat Loss Of Heat Exchangers Into Vicinitymentioning

confidence: 99%